Order of archiving

I have been asked a question when the mailbox has been enabled for archiving, how does it target the folders in archiving? Do we have any order like target first Inbox, Sent Items, and Delete items that way?

It just matters on the message class (IPM.Note) and not on folder structures. Any items that falls under Message class (other than exceptions like Deleted Items folder that you define according to your requirement under Archiving General) gets archived based on the policy you have defined.

@Amolzerocool / Wayne: The question that resides in my mind is if an item dated Aug 17th 2011 (for an instance) resides in Inbox and Sent items. It has to archive both if am not wrong but, that doesn't seem to be the case here in my org. For few users, sent items get archived and for few it doesn't even archive single item of sent items folder whereas the emails of same date and later in the inbox are archived.